Doorknob construction



Ap i 20, 1 4 N. A; WEL'CH E1- AL DOORKNOB CONSTRUCTION Filed Jan. 31, 1951 INVENTOR3- M'cwufls H. W51. cw BY Fkmwr JIM-Cowman.

Patented Apr. 20, 1954 DOORKNOB CONSTRUCTION Nicholas A. Welch, West Hartford, and Frank J. McConnell, New Britain, Conn, assignors to The American Hardware Corporation, New Britain, Conn, a corporation of Connecticut Application January 31, 1951, Serial No. 208,743

7 Claims. (01. 70-224) This invention relates to improvements in door knob construction and more particularly to such door knobs as are used on door locks. An object of this invention is an improved construction which will provide a door knob that may be economically manufactured and which is easy as assemble, durable, and readily adaptable to receive and have mounted therein a key controlled lock such as of the cylindrical type or the like.

A further object of the invention is to provide a knob which, with slight modifications, may be used without a key operated lock therein or, with slight modifications, may be adapted to receive different types of cylindrical locks.

Further objects and advantages of this invention will be more clearly understood from the following description and from the accompanying drawings in which:

Fig. l is an inner end view of a door knob embodying our improved construction.

Fi 2 is a sectional side View thereof.

Fig. 3 is an inner end view with the shank member of the knob being removed therefrom.

Fig. 4 is an inner end view of the said shank member.

Fig. 5 is a sectional side view from the opposite side of the knob and showing a modified form thereof with a cylindrical lock mounted therein.

In the embodiment of the invention illustrated in the drawings, our improved knob construction comprises a she1l-like grip portion 5 having an open inner end to which there is secured an annular sleeve 5 that has an annular groove 7, in the outer surface thereof, into which the free inturned marginal edge 8 of the portion 5 is extended by being spun thereinto, or otherwise forced thereinto, to secure said sleeve to the grip portion. If desired, the edge of the groove, or the marginal edge of the grip portion, may be peened so as to lock the said portion to the sleeve against rotation.

The said sleeve 55 is provided, at the inner end thereof, with a wall 9 having an opening it that is adapted to receive a lock it of the cylindrical type. The said opening is preferably formed with an off-set portion E2 to permit the use of a difierent type of cylindrical lock for which an opening of such formation is required.

At one side of the opening Ii] there is provided a notch 13 which receives a projection M, such as the pin-tumbler chamber on the cylindrical lock and prevents rotation thereof within the said opening.

A shank it, which is preferably tubular, is sesured to the said grip portion by means of an annular flange it which fits within the sleeve 6 and abuts the inner surface of the wall 9. This flange has perpendicular projections I1 thereon which extend through notches [3 in the wall 9 of the sleeve to prevent rotation of the shank relatively to said sleeve and grip portion. The said flange is preferably locked to the sleeve by means of contractable ring l9, which fits within an annular groove 20 in the inner wall of the sleeve 6 and has spaced end portions that are provided with openings 2| to receive a conventional tool for contracting the said ring when it is being assembled to the sleeve or removed therefrom. In the form illustrated, the flange I6 is provided with a collar 22 which is secured to the end of the shank It, by being brazed or otherwise connected thereto.

The outer wall of the grip portion 5 has a depressed axial portion 23 which, when a cylindrical lock is to be used in the knob, is provided with axial opening 24 for receiving the end portion of the key plug 25 of the cylindrical lock and thereby axially positioning the said lock within the knob. The inner end of the lock cylinder fits within a recess 26, in the flange it, which axially positions the inner end of the cylinder. Longitudinal movement of the said cylinder is prevented by its being contained between the said flange and outer wall of the grip portion.

It will be noted that our improved knob construction permits varied uses of the door knob with the making of slight modifications and provides for easy assembly of the parts of said knob in the production thereof. It also provides for readily mounting a cylinder look within the said knob by simply placing it in position within the knob, as illustrated in Fig. 5, and then securing the parts together by the insertion of the ring l9 into the groove 28. When the lock is thus secured to the knob, no other fastening means are required since endwise movement of the lock is prevented by the flange l6 and outer wall of the grip portion and rotational movement of the said lock is prevented by the projection 14 on the knob fitting within the notch H3 in the sleeve.

We claim:

1. A door knob construction comprising a shelllike grip member having an opening in the inner end thereof with inturned marginal edge portions surrounding said opening, a sleeve fitting within said opening and having an annular groove in the outer surface thereof into which the said marginal portions extend for securing the sleeve to the grip member, an end Wall on said sleeve, a

shank, a flange on said shank fitting within said sleeve and against said end wall, projections on said flange extending into openings in the said wall for preventing relative rotation between the shank and grip portion, the said sleeve having an annular groove in the inner surface thereof adiacent to said flange, and a fastening member detachably mounted within said groove and proj ecting therefrom into engagement with said flange securing the shank to the grip member.

2. A door knob construction comprising a shell-like grip portion formed of sheet metal and having an opening in the inner end thereof with inturned marginal edge portions surrounding said opening, an annular sleeve contained within said opening and having an annular groove in the exteri r sur oof, the said marginal portions being forced into. said. groove for securing the grip portion to the sleeve, an end Wall on said sleeve located within said grip portion, a shank, an annular flange on said shank fitting within said sleeve and against the said,- end Wall, projections on said flange extending perpendicularly therefrom through openings in saidwall to prevent relative rotation between said shank and grip portion, and. means detachably conto the inner wall of said sleeve and engaging flange securing the shank to the grip ortion.

3. door lnob construction comprising a shell-like grip portion having an opening at the inner end thereof and iii-turned marginal edge portions surrounding said opening, an annular sleeve fitting within said opening and secured to said edge portions, end wall on said sleeve having an axial opening extending therethrough, a lock unit contained within said grip portion and fitting Within said axial opening, a shank, an annular portion on said shank fitting within said sleeve and covering said axial opening; said ular portion engaging the lock and retaining it within the grip portion and means supported by said sleeve and engaging said annular portion securing the shank to the grip portion.

4:. A door knob construction comprising a shell-like rip portion having an opening at the thereof, an annular sleeve secured vithtn opening and extending into the grip portion, an end wall in the inner end of said sleeve, the said Wall and the front wall of the porti n having eo-axial openings therein, a lock contained thin said grip portion and having portions mung through said openings, a an annular flange on said shank fitting within the sle against the said end wall thereof and engaging the inner end portion of said lock thereby retaining the lock within said openings, and means securing said flange to the sleeve to thereby secure the shank to the grip portion.

5. A door knob construction comprising a shell-like grip member having an opening. in the inner end thereof and marginal edge portions surrounding said opening, an annular sleeve secured to said marginal edge portions and projecting through said opening into the grip member, a wall in the inner end of said sleeve having an opening therein co-axial with the sleeve and aligned with an opening in the front wall of the grip member, a lock unit contained within the grip member, the said lock unit including a casing and a rotatable plug thereinan end portion. of said casing extending through the opening in the said wall of the sleeve, the end portion of the plug extending through the opening in the front Wall of the grip member, a shank, a flange" on' the shank fitting within the recess in the sleeve and against the said wall thereof and having an annular recess receiving the adjacenti end portion. of the lock casing, the said retaining the lock unit in position within the gri member, and means within the recess in the sleeve securing the flange against said wall and thereby securing the said shank and lock unit to the grip portion.

6. A door knob. construction com-prising a shell-like grip member having a recess in the. innor end thereof, a bottom Wall in said; recess having an opening therethrough co axia-l with an opening in the front wall of the grip memher, a lock uni-t including a casing. contained Within said grip member and having its outer end portion positionedwithin the opening in the front wall of the grip member and its innor end portion extending through the opening in bottom wall, a shank, an annular flange on said shank fitting within said recess and over the opening in said bottom wall, projections on said flange extending into openings in said bottom wall, said flange having a recess receives th inner end of the look casing to positionit within the grip member and prevent axial movement thereof and means, securing the flange to the grip member.

'1. A. door knob construction comp ising a shell-like grip: member havingv a recess in: the inner end thereof, a bottom wall insaidv recess having an opening therethrough co-axial with an opening in the front Wallof the grip memher, a lock unit including a case contained Within. said grip member andhaving its outer end portion positioned Within the opening the said front wall, a shank, an annular flange on said shank fitting within said recess and over the opening in the bottom wall thereof; said flange having a recess therein which receives the inner end portion of the lock unit and positions it within the grip member, and means securing said flange Within said recess and to the grip member.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 798,209 Phelps Aug. 29,. 1905 1,986,452 Shaw et al. Jan. I, 1935 2,094,982 Gerard Oct. 5, 1937 2,547,439 Cerf, Jr. Apr. 3', 1951 

